本文以奥巴马宣布本.拉登死讯的电视演讲为语料,从批评语篇分析的角度,以系统功能语法为分析工具,对演讲中的人称代词,及物系统,情态系统,标记性主位,名词化现象进行了分析,以此来讨论奥巴马利用这篇演讲来重塑自己强势领导人的形象,以期达到自己政治目的的手段。 This article uses the televised speech of Obama’s announcement of the death of Osama bin Laden as a corpus. From the perspective of critical discourse analysis, using systemic functional grammar as an analytical tool, the personal pronouns in the speech, the transitive system, the modality system, the marked theme, and nouns The analysis of the phenomenon was carried out to discuss Obama’s use of this speech to reshape the image of his strong leader in order to achieve his own political goals.